-5-x=-11 thì x bằng: A. 6 B.-6 C.16 D.-16

phân tích các đa thức sau thành nhân tử a) 5x(x-2)-3x^2(x-2) b) 16x^2-(x^2+4)^2 c) 5x^2-5xy+7y-7x d) 3x^2-8x+4 e) x^4+64

248hg:4+25dag=...... 48m2cm+45dm3cm x 3 giúp em nhanh vs

Vấn đề khai thác bảo vệ tài nguyên khoáng sản nước ta hiện nay được đặt ra là gì

and but so because although 1. Children love cartoons________________ they make them feel happy. 2.____________ the newsreader speaks really fast, my father can hear everything. 3. The animal programme is so late____________ I can’t wait for it. 4. Some game shows are popular,_____________ I never watch them. 5. My sister is a weather woman, ___________my father is a newsreader.

Ex1.Put the correct verb form 0.She has never traveled(never/travel)by plane before 1.I_____(dream)of winning a medal for a long time. 2.She_______(not/see) much ò Vietnam,so she wanto to see more this year. 3._________you ever________(be)to a desert?No,never. 4.Van_____(throw)a surprise party for her boyfriend. 5.Where_____Stephen____(be)for the past2 days? Ex2.Underline the correct answer 0.His family hasn't contacted/didn't contact him for 5 years 1.She has seen/saw that movie more than5 times. 2.Stop complaining! You haven't stopped/stopped since you arrived. 3.We haven't found/didn't find any sign of life since we landed on Mars. 4.M.s Đó has never me to see her flast. 5.Congratulations!You have passed the exam.

There is one mistake in each sentence.Find and correct it

Khả năng, nguyên tắc giáo dục tích hợp nội dung an toàn giao thôngvào môn học Ngữ văn ở trường THCS

tam giac abc can tai a a<90 do bd cat ce tai h d thuoc ac e thuoc ab chung minh tam giac bce bang tam giac bcd

Giúp mình câu 31; 34; 35 nha mọi người!!! 《Giải hệ phương trình:》